[sdiy] How To Make This Oscillator into a VCO

[Scott Gravenhorst]

bill berzinskas <housenationmedia at yahoo.com> wrote:
>Thanks for all the good responses..  tons of good info..   
>
>Next Question: Can this be done without an OTA? For the most 
>part, i'm working with standard opamp pieces.. 

Yes, the vactrol or LED/LDR device can directly replace R1.

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